So the question arises, what is the most cost affective way of increasing biological activity into your soil, particularly for broad acre farming. Small time vegie growers can use compost, but broad acre farming requires a different approach. Is that where green manures come in?
I don't think so , I've seen a video of him explaining how anaerobic decomposition is totally bad for the soil health and CO2 production, and I guess that green manures are very anaerobic in its putrefaction
Cover crops and green manure are great for your soil because the plants will also feed the bacteria as they grow with the exudates it releases from its roots. Adding legumes to your mix of course will help with nitrogen fixation as well. I've been using green manure systems for many years, and managed to increase stable organic matter levels as measured by a soil test from 3% to 5.5% in only a decade. The result has been increased tilth, higher cation exchange capacity (CEC), and better water holding capacity as well. Unless you're tilling, you'll want to terminate your cover at the right time so that you can easily drill your seed with something like a Truax OTG through the trash.
